Improvement in grain-tollers



Gram-T 01161.

INVENTOR: I

ATTORNEYS.

Patented Dec. 11,1877 7 MP5 HOTO-LlTHOGR-APBER, WASHINGTON D C UNITED STATES PATENT OFFICE- ADOLPHUS H. VITT', OF UNION, MISSOURI.

IMPROVEMENT IN GRAlN-TOLLERSL Specification forming part of Letters Patent No. 198,059, dated December 11, 1877 application filed NovemberlO, 1877. g

To all whom it may concern:

Be it known that I, ADOLPHUS H. VITT,

of Union, in the county of Franklin and State proved Grain-Toller, of which the following is a specification: i

Similar lettersof reference indicate corresponding parts.

This invention has reference to an improved mechanical grain-toller, to be used in custommills for the'purpose of taking the toll accuratelyand without any troubleto the miller. The tolling device maybe readily adjusted to any proportion of toll, as agreed upon between the miller and the customer.

The invention consists of a stationary conductor-tube, thatconveys the grain from the hopper or elevator to a revolving and vertically-movable spring-disk. The disk is loW-, ered by the pressure of the grain, and the same allowed to escape over the edge of the l disk into an encircling casing with two exitspouts.

Vertical partitions of the encircling casing,

of which one is stationary, the other adjustable, conduct a certain proportion of grain to the toll-spout, while the remaining grain is conducted to the grindstones of the mill.

Referring to the drawing, A represents a conducting-tube, through which the grain passes down from the hopper or elevator onto a slightly concaved revolving disk, B. The

pressure of the grain bears on the revolving disk, and lowers the same, so that the grain may pass out between the lower end of tube A and disk B, and be distributed evenly over i the same, dropping gradually over the edge of of the disk into an annular casing or receptacle, 0, around the same.

The tube A is slightly increased in diameter toward. the lower end, so as to let the grain pass down with less friction on the sides of the tube, and exert consequently more press- ,ure on the disk.

The disk B is provided with a central tubular part, B, that is extended above and below the disk, the lower part being diametrically slotted, and connected to a coupling-pin,

a, of a center sh aft, D, that revolves at suitable speed by a pulley and belt, dfiven from any "In the accompanying drawing, Figure 1 represents a side elevation of my improved grain-teller; Fig. 2, a vertical central sectionon line w as, Fig. 1; and Fig. 3, a horizontal. section of the same on line y 3 Fig. 2.

convenient shaft in the mill.

The disk is compelled to follow the shaft by means of the pin-and-sleeve coupling.

The upper part of the tubeis closed, and between the same and the upper end of the shaft D a spiral cushioningspring, b, interposed, which, in connection wlth thelower slots, allows the disk to play freely up and according to the quantity of grain coming in at the top of the machine, the spring giving to the pressure, and allowing the disk to work as well with a regular flow as with an irregular flow of grain.

The outer casing or receptacle 0 is arranged with two vertical "partitions, E E, of which one is stationary and the other movable, being adjusted by a slot, setscrew, face-plate, and index along a graduated scale at the outside of the casing, as shown in Figs. 1 and 3.

The partitions, when adjusted to the proper.

distance, take up a certain fixed proportion of the circumference of the disk, and receive, by

the uniform dropping of grain over theedge of the disk, a corresponding proportion of the grain passing down through tube A. This forms the toll agreed upon'between the miller andcustomer. This quantity of grain is conducted from the section of the casing, between the partitions, through an exit-spout, F, to a suitable receptacle, while the main part of the grain passes along the spirally-inclined bottom of the remaining portion of the casing to a second exit-spout, F, and from the same to the mill or other suitable place.

The exact proportion of toll is separated by my tolling-machine in a reliable and certain manner, so as to be satisfactory to miller and customers".

Having thus described myinventio'n, I'olaim tition, and separate exit-spouts for the main as new and desire to secure by Letters Patand toll portions of the gratin substantially as 'ent set forth.

A grain-toner for custom-mills, consisting ADOLPHUS H. VITT. of a grain-conducting tube, of a revolving Witnesses: 1 and spring-cushioned disk, and of an encir- STEPHEN FRAZEE,

cling easing, with a fixed and adjust ble par- F. W. REINI-IARI); 

